AR2422 returns, AR2192 anniversary

Saturday, 17 October 2015 - 19:44 UTC

AR2422 returns, AR2192 anniversary

Not an M-class solar flare but old sunspot region 2422 (or what's left of it) is announcing itself on the east limb with an C8.6 solar flare.

In the coming days we will find out what is left of this sunspot region which managed to produce numerous M-class solar flares including two M5+ events during it's last transit across the earth-facing solar disk.

UPDATE 21:07 UTC: two M-class events took place just moments ago. Both of these events took place just behind the east limb where old sunspot region 2422 is supposed to be. M1.1 at 20:23 UTC and M1.5 at 20:42 UTC.

Sunspot region 2192 anniversary

It is today exactly one year ago that sunspot region 2192 crossed the east limb. We are sure that many of you remember this sunspot region very well. Sunspot region 2192 grew in the days that it faced Earth to be the largest sunspot region in 24 (!) years. It produced six X-class (R3) events but failed to launch a single coronal mass ejection towards Earth. For some reason it was not capable of launching any coronal mass ejections! A disappointment for sky watchers around the world, but what a sunspot region it was. For sure something to remember as one of the highlights of ongoing solar cycle 24.

Thank you for reading this article! Did you had trouble with some of the technical terms used in this article? Our help section is the place to be where you can find in-depth articles, a FAQ and a list with common abbreviations. Still puzzled? Just post on our forum where we will help you the best we can! Never want to miss out on a space weather event or one of our news articles again? Subscribe to our mailing list, follow us on Twitter and Facebook and download the SpaceWeatherLive app for Android and iOS!

Latest news


A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!


Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2020:12
Current stretch spotless days:10

This day in history*

Solar flares
*since 1994

Social networks